基于PLC的物料混合控制系统的研究分析 电气自动化专业VIP专享VIP免费

摘要PLC是以计算机技术为核心的通用自动控制装置，也可以说它是一种用程序来改变控制功能的计算机。随着微处理器、计算机和通信技术的飞速发展，可编程序控制器PLC已在工业控制中得到广泛应用，而且所占比重在迅速的上升。PLC主要由CPU模块、输入模块、输出模块和编程装置组成。它应用于工业混合搅拌设备，使得搅拌过程实现了自动化控制、并且提升了搅拌设备工作的稳定性，为搅拌机械顺利、有序、准确的工作创造了有力的保障。本文所介绍的多种液体混合的PLC控制程序可进行单周期或连续工作，具有断电记忆功能，复电后可以继续运行。另外，PLC还有通信联网功能，再通过WINCC组态，可直接对现场监控、更方便工作和管理。关键词：可编程序控制器PLC；液位传感器；定时器；BasedonPLCcontrolsystemofmixingeffciengAbstractComputertechnologyasthecoreofPLCinthegeneralautomaticcontrolequipment,itisakindofprogramtochangecontrolfunctionofthecomputer.Asmicroprocessors,computerandcommunicationtechnology,therapiddevelopmentofPLCprogrammablecontrollerhaswidelyappliedinindustrialcontrol,andtheproportionoftherapidrisein.PLCmainlyconsistsofCPUmodule,inputandoutputmoduleandprogrammingmoduledevice.Itisappliedinindustry,mixingequipmentmixingprocessrealizedautomationcontrol,andimprovedthestability,agitateequipmentworkforthemixingmachinesmoothly,orderly,accurateworkingcreatespowerfulguarantee.ThispaperintroducesvariousliquidmixtureofPLCcontrolprocedurescanbeasinglecycleorcontinuousworkingmemoryfunction,cancontinuerunningafter,wiredback.Inaddition,PLCandcommunications,networkingWINCCconfiguration,butthroughdirecttositemonitoringandmanagement,andmoreconvenient.Keywords:PLCprogrammablecontroller,Levelsensor,Thetimer,目录第一章引言...................................................................................................................1第二章总体方案设计................................................................................................3第三章硬件设计...........................................................................................................53.1硬件选型，根据PLC的输入、出点数，控制功能选择适用型号的PLC.....53.1.1PLC机型选择..................................................................................................53.1.2PLC容量选择..................................................................................................73.1.3I/O模块的选择................................................................................................73.1.4电源模块的选择...............................................................................................93.1.5设备型号选择.................................................................................................103.2外部接线图........................................................................................................103.3系统安全设计，可靠性、实用性强.................................................................11第四章程序设计........................................................................................................134.1设计程序的流程图.............................................................................................134.2I/O分配表..........................................................................................................144.3控制程序设计，最大限度的满足被控对象的控制要求................................154.3.2程序设计.............................................................................................